Preface: Essay on plate tectonics -- Acknowledgments -- Introduction -- Entries A-Z -- Appendix A: Chronology of earthquakes and volcanic eruptions -- Appendix B: Eyewitness accounts of major ...

Officials are monitoring the largest earthquake swarm ever at Washington's Mount Rainier that started on July 8, 2025. The U.S. Geological Survey Cascades Volcano Observatory (USGS) reported the swarm ...

Klyuchevskoy volcano in eastern Russia began erupting shortly after a powerful 8.8 magnitude earthquake and several aftershocks shook the same area. "A descent of hot lava is observed on the western ...

The overnight eruption of the Krasheninnikov Volcano in Kamchatka, its first in 600 years, may be connected to the huge earthquake that rocked Russia’s Far East last week, Russia’s RIA state news ...

The Ring of Fire is an enormous belt of active and dormant volcanoes that surrounds most of the Pacific Ocean. It runs from southern Chile, up the west coast of the Americas, through the islands off ...